[Exim] How to test incoming e-mail for DDNS domain

Dear Exim users,

I have exim4 running on a (Debian/testing) host without a
fixed IP address, so, for the time being l need to use Dynamic DNS.

At the moment I have NOT succeeded in sending e-mail
to that server from outside. As IP blacklisting should
not be an issue for incoming e-mail, it should be possible
to do this.

I am trying to set up a test environment using a second PC and
a second Internet connection through a different ISP.

... however, are there easier ways to run tests, for example,
something that would emulate, from a web interface, the
Unix 'mail -v user@???' ?.

Any other suggestions for testing would be appreciated.

TIA,

James

--
James Sinnamon
frodo000@bigpond net au
(aka jaymz-.a.t.-bigpond-net-auStralia)
+61 412 319669, +61 2 95692123